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Finding the Fourth Proportional to 57,686.56, 86,354.48 and 36,924.64

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Solution

The fourth proportional to 57,686.56, 86,354.48 and 36,924.64 is: 55,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,686.56 : 86,354.48 = 36,924.64 : x
  2. Step 2: Convert to fraction form
    57,686.56/86,354.48 = 36,924.64/x
  3. Step 3: Cross multiply
    57,686.56x = 86,354.48 × 36,924.64
  4. Step 4: Simplify right side
    57,686.56x = 3,188,608,086.39
  5. Step 5: Solve for x
    x = 3,188,608,086.39/57,686.56
  6. Step 6: Final answer
    x = 55,274.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.